PMID- 27343171 OWN - NLM STAT- MEDLINE DCOM- 20171207 LR - 20180104 IS - 1878-3279 (Electronic) IS - 0171-2985 (Linking) VI - 221 IP - 11 DP - 2016 Nov TI - The effect of Dermatophagoides pteronyssinus group 7 allergen (Der p 7) on dendritic cells and its role in T cell polarization. PG - 1319-28 LID - S0171-2985(16)30053-5 [pii] LID - 10.1016/j.imbio.2016.04.002 [doi] AB - The innate signaling pathway for Th2 immunity activated by inhaled allergens has not been well defined. Dendritic cells (DCs) can use their innate pattern-recognition Toll-like receptors and C-type lectin receptors to generate innate immunity and influence adaptive responses. The aim of this study was to investigate the glycoform of Dermatophagoides pteronyssinus group 7 allergen (Der p 7) and its functional interaction with dendritic cell-specific intercellular adhesion molecule-3-grabbing non-integrin (DC-SIGN). Both bone marrow-derived dendritic cells (BMDCs) derived from mice and monocyte-derived DCs (MDDCs) derived from human peripheral blood mononuclear cells (PBMCs) were used to investigate the function of Der p 7. Dendritic cells derived from THP1 were used to investigate the glycol form of Der p 7. Der p 7 interacted with DC-SIGN as recognized by immunoprecipitation and glycoprotein staining, and its function was partially inhibited by deglycosylation. When BMDCs were cultured with Der p 7, the secretion of IL-6 and gene expressions of IL-6, OX40L and Jagged-1 were increased. IL4(+)/CD4(+) T cells could be induced by Der p 7, however IFN-gamma(+)/CD4(+) T cells were down-regulated. The effects of Der p 7 on DCs were down-regulated in the presence of DC-SIGN or TLR4 antibodies and deglycosylation. rDer p 7 enhanced the DC differentiation of CD80 and CD86. The effects of Der p 7 pulsed-MDDCs on IL4(+)/CD4(+) and IFN-gamma(+)/CD4(+) T-cell differentiation of human PBMCs were significantly increased after Der p 7 stimulation and decreased by DC-SIGN antibody inhibition. In conclusion, the Der p 7 is a glycoprotein and its function was partially through glycan binding. BMDCs could be activated by Der p 7 through TLR4 and DC-SIGN, and followed by the expression of OX40 ligand (OX40L) and Jagged-1, the expressions of IL4(+)/CD4(+) cells were enhanced. These findings identify a previously unrecognized function of Der p 7 and establish a link between innate TLR4/C-type lectin receptors and adaptive Th2 immunity. CI - Copyright (c) 2016 Elsevier GmbH. All rights reserved. FAU - Tsai, Jaw-Ji AU - Tsai JJ AD - Division of Allergy, Immunology & Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan; College of Life Sciences, National Chung Hsing University, Taichung, Taiwan; Institute of Clinical Medicine, National Yang Ming University, Taipei, Taiwan. FAU - Wang, Hsin-Chieh AU - Wang HC AD - College of Life Sciences, National Chung Hsing University, Taichung, Taiwan. FAU - Chiu, Chih-Liang AU - Chiu CL AD - Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan. FAU - Liao, En-Chih AU - Liao EC AD - Department of Medicine, Mackay Medical College, New Taipei, Taiwan. Electronic address: enchih@mmc.edu.tw. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160613 PL - Netherlands TA - Immunobiology JT - Immunobiology JID - 8002742 RN - 0 (Allergens) RN - 0 (Antigens, Dermatophagoides) RN - 0 (Arthropod Proteins) RN - 0 (Biomarkers) RN - 0 (Cell Adhesion Molecules) RN - 0 (Cytokines) RN - 0 (DC-specific ICAM-3 grabbing nonintegrin) RN - 0 (Dermatophagoides pteronyssinus antigen p 7) RN - 0 (Jagged-1 Protein) RN - 0 (Lectins, C-Type) RN - 0 (Polysaccharides) RN - 0 (Receptors, Cell Surface) RN - 0 (Receptors, OX40) RN - 0 (Toll-Like Receptor 4) SB - IM MH - Allergens/immunology MH - Animals MH - Antigens, Dermatophagoides/*immunology MH - Arthropod Proteins/*immunology MH - Biomarkers MH - Cell Adhesion Molecules/metabolism MH - Cell Differentiation/genetics/immunology MH - Cell Line MH - Cytokines/genetics/metabolism MH - Dendritic Cells/*immunology/metabolism MH - Dermatophagoides pteronyssinus/immunology MH - Humans MH - Jagged-1 Protein/genetics/metabolism MH - Lectins, C-Type/metabolism MH - Leukocytes, Mononuclear/immunology/metabolism MH - Lymphocyte Activation/*immunology MH - Macrophages/immunology/metabolism MH - Male MH - Mice MH - Polysaccharides/metabolism MH - Receptors, Cell Surface/metabolism MH - Receptors, OX40/genetics/metabolism MH - T-Lymphocytes/cytology/*immunology/metabolism MH - Toll-Like Receptor 4/genetics/metabolism OTO - NOTNLM OT - C-type lectin receptor OT - DC-SIGN OT - Dendritic cell OT - Der p 7 OT - Dermatophagoides pteronyssinus EDAT- 2016/06/28 06:00 MHDA- 2017/12/08 06:00 CRDT- 2016/06/26 06:00 PHST- 2015/11/25 00:00 [received] PHST- 2016/03/10 00:00 [revised] PHST- 2016/04/12 00:00 [accepted] PHST- 2016/06/26 06:00 [entrez] PHST- 2016/06/28 06:00 [pubmed] PHST- 2017/12/08 06:00 [medline] AID - S0171-2985(16)30053-5 [pii] AID - 10.1016/j.imbio.2016.04.002 [doi] PST - ppublish SO - Immunobiology. 2016 Nov;221(11):1319-28. doi: 10.1016/j.imbio.2016.04.002. Epub 2016 Jun 13.